Why did the chicken...

Q. How do humans get infected?

It is rare for bird flu to infect humans. In the few cases where humans are infected, the virus is transmitted through close contact with infected chickens. You can only catch the bird flu virus if an infected chicken coughs or sneezes directly into your face, or if you breathe in particles from its droppings.

You solved the compulsive question the my 11 year old granddaughter has been bugging with. "Do chickens sneeze?"
I had told her that the internet can answer virtually any question if one takes the time to search.